期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到305,890篇文章
< 1 2 … 250 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Synthetic metabolic engineering of functional crops:Boosting nutrition and human health 认领 引用 被引量：5
1
作者 Nan Chai Jie Xu +12 位作者 Ruixiang Zhang Guangzhou Li Jun Wen Liying Su Yang Xue Tie Li Jialin Liu Dongchang Zeng Jiantao Tan Jiaqi Huang Letian Chen Yao-Guang Liu Qinlong Zhu 《The Crop Journal》 SCIE CSCD 2026年第1期8-21,共14页
A growing global population and the increasing prevalence of diet-related health issues such as“hidden hunger”,obesity,hypertension,and diabetes necessitate a fundamental rethinking of crop design and breeding.Synth... A growing global population and the increasing prevalence of diet-related health issues such as“hidden hunger”,obesity,hypertension,and diabetes necessitate a fundamental rethinking of crop design and breeding.Synthetic metabolic engineering offers a method to modify and redesign metabolic pathways to increase the nutritional value of crops.We summarize recent advances in the biofortification of key nutrients including provitamin A,vitamin C,vitamin B9,iron,zinc,anthocyanins,flavonoids,and unsaturated fatty acids.We discuss the potential of multi-gene stacking,gene editing,enzyme engineering,and artificial intelligence in synthetic metabolic engineering.We propose future research directions and potential solutions centered on leveraging AI-driven systems biology,precision gene editing,enzyme engineering,agrobacterium-mediated genotype-independent transformation,and modular metabolic engineering strategies to develop next-generation nutritionally enhanced super crops and transform global food systems. 展开更多
关键词 Synthetic biology Synthetic metabolism engineering Functional crops Multigene stacking and gene editing Artificial intelligence
暂未订购 下载PDF
Nanocellulose-Induced“Surface-Lock”Engineering:Curbing the Dissolution of MnO2for High-Performance Zn-MnO2Flexible Electrodes 认领 引用 被引量：2
2
作者 Meng Zhang Ting Xu +8 位作者 Wei Liu Han Zhang Junjie Qi Xuan Wang Yaxuan Wang Liyu Zhu Kun Liu Junfeng Wang Chuanling Si 《Carbon Energy》 SCIE EI CAS CSCD 2026年第4期1-14,共14页
Carbon-based substrates in Zn-MnO2flexible batteries have issues of low adhesion to MnO2,impacting cycle stability and capacity performance.A triple-synergistic strategy integrating C-O-Mn covalent bonding,wetta... Carbon-based substrates in Zn-MnO2flexible batteries have issues of low adhesion to MnO2,impacting cycle stability and capacity performance.A triple-synergistic strategy integrating C-O-Mn covalent bonding,wettability optimization,and hierarchical mesoporous engineering via cellulose nanofibers/carbon nanotube(CNF/CNT)-modified carbon cloth(CC)was proposed.This design achieves a“surface-locking”effect between the substrate and electrode materials,which was proven through theory and experiments.Density functional theory(DFT)simulations validate the“surface-locking”mechanism,where oxygen functionalities on CNF can form robust CO-Mn bonds with MnO2,inducing an increase in MnO2adsorption energy from-0.21 e V(pristine CC)to-1.36 e V,effectively suppressing Mn dissolution.Optimal wettability(contact angle:97°)reduced Zn2+desolvation and water-induced side reactions.Hierarchical pore structures accelerated Zn2+diffusion.The optimized CC@CNF1/CNT2-MnO2cathode achieves 92%capacity retention after 2000 cycles at 1 A/g.This study highlights a surface engineering strategy that effectively addresses the individual challenges associated with interfacial adhesion,reaction kinetics,and ion transport.This strategy offers fundamental insights into electrode interface modification for the development of nextgeneration flexible energy storage systems. 展开更多
关键词 cellulose nanofibers flexible zinc batteries interface engineering
暂未订购 下载PDF
Crop metabolic engineering towards enhanced resistance to pests and pathogens 认领 引用 被引量：1
3
作者 Jiaojiao Wang Jinyue Yang +5 位作者 Junxing Yu Yaxian Liu Youping Wang Amr El-Demerdash Wenbin Zhou Dewei Wu 《The Crop Journal》 SCIE CSCD 2026年第1期48-60,共13页
Plants produce a vast array of specialized metabolites that serve as essential defenses against herbivores and pathogens.However,the capacity to produce these compounds differs substantially among plant species and is... Plants produce a vast array of specialized metabolites that serve as essential defenses against herbivores and pathogens.However,the capacity to produce these compounds differs substantially among plant species and is frequently diminished during domestication.Advances in synthetic metabolic engineering enable efficient elucidation and engineering of plant specialized metabolic pathways active in crop pest and pathogen resistance.This review summarizes strategies and workflows for selecting defensive metabolic pathways,identifying candidate biosynthetic genes,and rewiring native or introducing heterologous pathways to enhance crop resistance to pests and pathogens.Strategies include weighted gene co-expression network construction,biosynthetic gene cluster scanning,and metabolite genome-wide association studies for pathway discovery,as well as transcriptional reprogramming,enzyme activity optimization,and transporter deployment for pathway engineering.We further discuss challenges in using synthetic metabolic engineering to enhance crop resistance and highlight the potential of artificial intelligence in addressing them. 展开更多
关键词 Crop resistance Synthetic metabolic engineering Plant specialized metabolite Synthetic biology
暂未订购 下载PDF
Li Qingzhong-Academician of the Chinese Academy of Engineering. 认领 引用
4
《China Oil & Gas》 CAS 1996年第3期190-190,共1页
LiQingzhong－AcademicianoftheChineseAcademyofEngineering．LiQingzhongwasbornin1930andgraduatedfromDepartmentofPhysicsatQinghuaU...
关键词 Li Qingzhong-Academician of the Chinese Academy of Engineering
暂未订购 下载PDF
Synergistically coupling of vertically oriented Ru/Co co-doped MoS2 with interfacial engineering for efficient electrochemical hydrogen evolution 认领 引用
5
作者 Yanqi Ding Tao Zhang +5 位作者 Xue Ren Lingyun Wang Qian Chen Hongbing Song Meng Xiao Tingting Huang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第5期127-138,共12页
This article proposes an optimized strategy integrating bimetallic doping with interfacial wettability engineering to successfully fabricate a Ru-Co bimetallic-doped MoS2 catalyst vertically oriented on modified ca... This article proposes an optimized strategy integrating bimetallic doping with interfacial wettability engineering to successfully fabricate a Ru-Co bimetallic-doped MoS2 catalyst vertically oriented on modified carbon cloth for efficient hydrogen evolution reaction.The treated carbon cloth not only enhances its surface hydrophilicity but also provides nucleation sites for the growth of RuCo-MoS2 nanosheets.Subsequently,the development of an oriented growth induction strategy enables the vertical alignment of bimetallic atom-doped MoS2 on modified carbon cloth.This vertically grown structure is conducive to exposing more active sites,shortening the proton transport path,reducing the charge transfer impedance.Moreover,this study employs a reductive bonding technique to precisely modulate the coordination environments and electron distributions of co-doped Co and Ru bimetallic atoms,as well as significantly improving the hydrogen evolution reaction kinetics.Therefore,the as-prepared RuCo-MoS2/MCC catalyst demonstrates excellent HER performance in acidic electrolyte,exhibiting a relatively low overpotential of 62 mV at 10 mA·cm-2and a small Tafel slope of 48.2 mV·dec-1. 展开更多
关键词 Molybdenum disulfide Interfacial wettability engineering Defect engineering Bimetallic doping Electrocatalysis Hydrogen production
暂未订购 下载PDF
Molecular sieving and skeletal engineering of a pitch precursor to overcome reaction heterogeneity for high-performance hard carbon anodes in sodium-ion batteries 认领 引用
6
作者 Zenghao Wang Bin Lou +7 位作者 Jun Li Luning Chai Ning Xiang Shifu Cheng Zhichen Zhang Xiangen Shan Rongheng Gou Dong Liu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第5期290-301,I0007,共12页
Pitch-derived hard carbons(HC)are promising anodes for sodium-ion batteries(SIBs)due to their high carbonization yield and low cost.However,the inherent compositional heterogeneity of pitch induces non-uniform oxidati... Pitch-derived hard carbons(HC)are promising anodes for sodium-ion batteries(SIBs)due to their high carbonization yield and low cost.However,the inherent compositional heterogeneity of pitch induces non-uniform oxidative cross-linking during conventional pre-oxidation,which not only renders the microstructure of HC difficult to regulate but also significantly degrades its sodium storage performance.Here,we identify the“shielding effect”of oxidation-inert components in pitch as the root cause of this structural inhomogeneity.To overcome this limitation,we propose a novel“sieving-and-reinforcement strategy”.This involves liquid-phase crosslinking to construct a polar three-dimensional(3D)carbon skeleton,followed by stepwise extraction as a molecular sieving process to remove inert components and expose the reactive skeleton,and finally,oxygen etching as a reinforcement step to drastically enhance the crosslinking density and defect population.This controllably engineered carbon skeleton in-situ evolves into an HC with a uniform hierarchical porous structure,featuring abundant ultramicropores,optimally sized closed pores(-2.15 nm),and ultrathin pore walls during carbonization.The resulting HC anode delivers a high reversible capacity of 363.3 mAh g-1at 50 mA g-1,with an impressive plateau capacity contribution of 71.5%.It also demonstrates exceptional cycling stability,retaining203.1 mAh g-1after 500 cycles at a high current density of 1000 mA g-1.This work provides a fundamental understanding of precursor engineering,paving the way for the rational design of advanced carbon materials for next-generation energy storage. 展开更多
关键词 Hard carbon Sodium-ion batteries Pitch Precursor engineering Reaction heterogeneity Skeletal engineering Closed pores
暂未订购 下载PDF
Defect engineering of TiO2 for efficient photocatalytic transfer hydrogenation with palladium as cocatalyst and water as a hydrogen source 认领 引用
7
作者 En Zhao Jingyuan Su +6 位作者 Hehe Fan Bing Nan Lina Li Haifeng Qi Weiwei Fang Wenjun Zhang Zupeng Chen 《Green Energy & Environment》 SCIE EI CAS CSCD 2026年第2期557-564,共8页
Photocatalytic transfer hydrogenation using water as the proton source has emerged as an attractive and green approach for the catalytic reduction of unsaturated bonds.Herein,we report an oxygen-defective TiO2-supp... Photocatalytic transfer hydrogenation using water as the proton source has emerged as an attractive and green approach for the catalytic reduction of unsaturated bonds.Herein,we report an oxygen-defective TiO2-supported palladium catalyst(Pd-TiO2-Ov)for efficient photocatalytic water-donating transfer hydrogenation of anethole towards 4-n-propylanisole in a high yield of 99.9%,which is significantly higher compared to the pristine TiO2-supported palladium catalyst(Pd-TiO2,74%).The enhanced performance is ascribed to the presence of oxygen vacancies,which facilitate light absorption and suppress the recombination of photogenerated electron-hole pairs.Furthermore,the Pd-TiO2-Ov is versatile in hydrogenating various alkene substrates including those with hydroxyl,ether,fluoride,and chloride functional groups in full conversion,thus offering a green method for transfer hydrogenation of alkenes.This study provides new insights and advances in current hydrogenation technology with water as the proton source. 展开更多
关键词 Photocatalysis Transfer hydrogenation Palladium Defect engineering Water splitting
暂未订购 下载PDF
Quantitative Defect-Property Correlations in Ti3C2Tx MXenes via Precursor‑Controlled Defect Engineering 认领 引用
8
作者 Tufail Hassan Doyeon Lee +13 位作者 Shabbir Madad Naqvi Myungjae Kim Jung‑Min Oh Sang Woon Park Aamir Iqbal Soo Yeong Cho Zhiwang Hao Noushad Hussain Zubair Khalid Shakir Zaman Xiangmeng Kong Ki‑Min Roh Hanjung Kwon Chong Min Koo 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第8期235-251,共17页
Defect engineering holds great promise for tailoring the multifunctional properties of MXenes.However,quantitative correlations between defect and material performance remain largely unexplored due to the lack of a re... Defect engineering holds great promise for tailoring the multifunctional properties of MXenes.However,quantitative correlations between defect and material performance remain largely unexplored due to the lack of a reliable strategy to precisely control defect densities.Here,we demonstrate that the defect density of Ti3C2Tx MXenes—including titanium and carbon vacancies,substitutional oxygen defects,and the associated lattice strain—is precisely controlled by adjusting carbon stoichiometry during TiC precursor synthesis and aluminum content during Ti3AlC2 MAX formation.The defect densities propagate from precursors to final MXenes,enabling the fabrication of a series of Ti3C2Tx MXenes with systematically controlled defect densities.This allows a quantitative correlation between defect density and multifunctional properties including electrical and thermal conductivities,infrared emissivity,electromagnetic shielding effectiveness,Joule heating performance,and oxidation stability.The defect-minimized Ti3C2Tx MXene exhibits outstanding performance,with an electrical conductivity of 26,000 S cm−1,thermal conductivity of 57 W m−1 K−1,electromagnetic shielding effectiveness of 90.5 dB at 10μm,Joule heating performance of 263℃ at 1.5 V,ultralow infrared emissivity of 0.05,and superior oxidation resistance(activation energy of 72 kJ mol−1).Furthermore,this work establishes a comprehensive quantitative framework linking defect structure to multifunctional performance and stability. 展开更多
关键词 MXenes Defect engineering Vacancies and substitutions defects Defect-property correlation Oxidation resistance
暂未订购 下载PDF
Inorganic all-solid-state sodium batteries:Electrolyte design,interface engineering,and multiscale approaches 认领 引用
9
作者 Yihang Song Hanyu Zhou +12 位作者 Tingyi Zhao Boyang Zhang Huanting Sun Iqbal Ahmed Khurshid Jiajia Wang Hao Li Yanqiang Kong Lei Chen Liu Cui Dongyue Zhang Weijia Wang Lijun Yang Xiaoze Du 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第1期415-434,I0010,共20页
In the realm of large-scale power system energy storage,sodium-based batteries represent a cost-effective post-lithium energy storage technology,making inorganic solid-state sodium batteries(ISSSB)a critical branch of... In the realm of large-scale power system energy storage,sodium-based batteries represent a cost-effective post-lithium energy storage technology,making inorganic solid-state sodium batteries(ISSSB)a critical branch of this development.Inorganic solid-state electrolytes(ISSEs)are the core components of sodium batteries;however,they face significant challenges such as insufficient ionic conductivity,interfacial instability,and dendrite growth,all of which severely hinder practical application.This review critically assesses experimental protocols and theoretical frameworks related to mainstream ISSEs and systematizes optimization strategies aimed at overcoming these challenges.Leveraging integrated insights from both experimental and computational studies,the review first categorizes and summarizes the primary types of ISSEs,namely oxide-,sulfide-,and halide-based electrolytes.It then details interfacial optimization strategies focused on addressing three core interfacial issues:ion transport barriers resulting from mechanical incompatibility,side reactions stemming from electrochemical mismatch,and dendrite formation.Finally,the review advocates prioritizing in-depth research that integrates experimental and theoretical approaches to establish a closed-loop methodology encompassing predictive design,multiscale investigation,mechanistic exploration,and high-throughput automated experimentation,with feedback-driven refinement.This work serves as a comprehensive reference and systematic roadmap for future research on solid-state electrolytes(SSEs). 展开更多
关键词 Sodium battery Inorganic solid-state electrolytes Modification strategy Experimental modification Theoretical computation Interface engineering
暂未订购 下载PDF
A review of similar physical simulation in geotechnical engineering:Advances in the past 25 years 认领 引用
10
作者 Quan Jiang Qiang Liu +2 位作者 Jiayao Wu Fengqiang Gong Xiuquan Lu 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2026年第4期3281-3328,共48页
Physical modeling is a vital tool in modern scientific research.This study provides a systematical review of progress in similitude-based physical modeling methods in geotechnical engineering since the beginning of th... Physical modeling is a vital tool in modern scientific research.This study provides a systematical review of progress in similitude-based physical modeling methods in geotechnical engineering since the beginning of the 21st century.Firstly,bibliometric methods are employed to analyze research trends and frontiers in this field,with consideration of publication trends,leading countries and institutions,and hot topics.Qualitative leaps are made in five key areas:(1)the similarity theory has advanced from the concept of simple similarity in physical quantities to the quantitative analysis of distorted similarity under complex variables;(2)similar materials have evolved from simple proportioning of materials to functional customization,with breakthroughs in transparent geotechnical materials overcoming the limitations of the conventional"black box"approaches;(3)model fabrication has advanced from rough manual preparation to the stage of intelligent and precise construction;(4)loading systems have been developed from uniaxial and biaxial loading to true triaxial loading,and from static and dynamic loading to multi-field coupling;and(5)measurement technologies have shown promising progress in characterizing multiple physical fields,including acoustic,optical,electrical,magnetic,thermal,and mechanical properties.Bibliometrics and highly cited papers confirm the crucial role of physical modeling in addressing key geotechnical challenges,such as tunnels,slopes,pile foundations,and dams.However,current research still has problems,including insufficient structural constitutive similarity,simplified environmental simulation,and low accuracy in disturbance reproduction.Future advancements are expected to be driven by interdisciplinary integration and cutting-edge technologies,steering physical modeling toward refinement,integration,intelligence,and unmanned operation. 展开更多
关键词 Geotechnical engineering Physical simulation Similarity theory Similar materials Model fabrication Loading system Measurement techniques
暂未订购 下载PDF
Work function engineering of MXene contacts for high-performance,self-powered AlGaN solar-blind photodetectors 认领 引用
11
作者 Pan Dai Dengshan Cai +12 位作者 Wenxian Yang Ying Gu Haowen Hua Mengyang Huang Peng Zhang Xueyan Feng Sijia Wei Zheng Zhong Yi Gong Jianjun Zhu Shan Jin Shulong Lu Min Jiang 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第6期878-885,共8页
AlGaN-based solar-blind UV photodetectors are crucial for critical applications but suffer from Fermi-level pinning that leads to high dark current.Constructing a high-barrier heterojunction interface effectively supp... AlGaN-based solar-blind UV photodetectors are crucial for critical applications but suffer from Fermi-level pinning that leads to high dark current.Constructing a high-barrier heterojunction interface effectively suppresses dark current,yet controlling the AlGaNwo-dimensional material barrier via work function modulation remains challenging.Here,we tailor the work function of MXene(3.7–4.6 eV)through surface oxidation to fabricate self-powered MXene/AlGaN van der Waals photodetectors.By alleviating Fermi-level pinning and forming a deep-depletion barrier,the device exhibits a suppression of dark current by nearly four orders of magnitude at 0 V(10-14A regime).Consequently,the device achieves a high responsivity of 15 mA/W and a specific detectivity of 2×1011Jones at 280 nm,accompanied by a rapid response time of 0.66 ms.This work validates work function engineering as a potent strategy for optimizing interface energetics and boosting the performance of wide-bandgap optoelectronics. 展开更多
关键词 AlGaN MXene solar-blind photodetector work function engineering van der Waals heterojunction
暂未订购 下载PDF
Theoretical model for predicting deformation of pipe curtain support structure in underground engineering 认领 引用
12
作者 Qian BAI Wen ZHAO +4 位作者 Pengpeng NI Jialong LI Pengjiao JIA Xiang LIU Tianliang LI 《ENGINEERING Structure and Civil Engineering》 SCIE EI CAS CSCD 2026年第1期246-261,共16页
Pipe curtains are widely employed in underground engineering as support structures to control stratum deformation during excavation.However,a comprehensive theoretical model for accurately predicting pipe curtain defo... Pipe curtains are widely employed in underground engineering as support structures to control stratum deformation during excavation.However,a comprehensive theoretical model for accurately predicting pipe curtain deformation remains lacking.This study establishes a deformation prediction model for pipe curtains based on the smalldeflection elastic plate theory,incorporating the actual stress characteristics of pipe curtains and the effects of overlying loads.The calculation method for the bending stiffness of pipe curtains under various arrangements is derived.Using in situ monitoring data from the Pinganli Station and the Shifu Station,the model’s effectiveness is validated.Furthermore,the influence of key parameters on pipe curtain deformation under different arrangements is systematically analyzed.The results show that the proposed calculation methods achieve satisfactory accuracy for both transverse and longitudinal arrangements,with average errors of 0.9%and 19.8%,respectively,making them suitable for practical engineering applications.In addition,the transverse arrangement effectively reduces the deformation of pipe curtains induced by excavation.Among all factors,the excavation span exerts the most significant influence on pipe curtain deformation.Specifically,the maximum deformation decreases exponentially with increasing steel pipe diameter,decreases linearly with the stiffness of the grouting body between pipes,and increases exponentially with the excavation span. 展开更多
关键词 underground engineering pipe curtain deformation excavation calculation model sensitivity analysis
暂未订购 下载PDF
Efficient H2O2 photosynthesis through linker engineering of benzotrithiophene-based covalent organic frameworks 认领 引用
13
作者 Ke-Hui Xie Cong-Xue Liu +3 位作者 Yan Geng Jing-Lan Kan Guang-Bo Wang Yu-Bin Dong 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2026年第4期271-281,共11页
The photogenerated carrier separation efficiency and material wettability are of critical importance for aqueous-phase photocatalytic reactions,achieving both simultaneously poses a significant challenge owing to the ... The photogenerated carrier separation efficiency and material wettability are of critical importance for aqueous-phase photocatalytic reactions,achieving both simultaneously poses a significant challenge owing to the inherent interdependencies and trade-offs involved.In this work,a series of isoreticular benzotrithiophene-based covalent organic frameworks(COFs)were successfully synthesized by incorporating diverse hydrophobic and hydrophilic functional groups(-OH,-F,-H)onto their skeletons,thereby modulating their characteristic charge separation and transport as well as their wettability,and systematically studied their photocatalytic H2O2 production performance in O2-saturated water under visible-light irradiation.Remarkably,the synthesized hydrophilic BTT-BD-OH-COF demonstrates the highest H2O2 production rate of 6105μmol g-1 h-1 in the absence of any sacrificial agent in pure water,attributed to its extended light absorption range,improved hydrophilicity,and enhanced photo-induced charge separation and transport efficiency.Combined experimental results and the density functional theory calculations elucidate the reaction mechanism,revealing the overall H2O2 photosynthesis via both oxygen reduction reaction and water oxidation reaction dual pathways.This study demonstrates that functional-group-mediated linker engineering is a powerful approach for significantly enhancing the efficiency of COF-based photocatalysts. 展开更多
关键词 Covalent organic frameworks Photocatalysis Hydrogen peroxide Linker engineering Benzotrithiophene
暂未订购 下载PDF
Green solvent engineering and additive modulation in stabilized black FAPbI3 perovskite single crystals for high-performance photodetectors 认领 引用
14
作者 Meitong Guo Ying Wang +9 位作者 Binyi Zhou Siyv Li Bingbing Zhang Hongbo Huang Zhenguang Wang Leipeng Li Shufang Wang Linjuan Guo Caofeng Pan Zheng Yang 《Science China Materials》 SCIE EI CAS CSCD 2026年第7期4236-4244,共9页
Formamidine lead-based perovskites(FAPbI3)exhibit significant potential in optoelectronic applications.Nevertheless,they encounter challenges related to δ-phase instability and reliance on toxic solvents.In this s... Formamidine lead-based perovskites(FAPbI3)exhibit significant potential in optoelectronic applications.Nevertheless,they encounter challenges related to δ-phase instability and reliance on toxic solvents.In this study,we present a green solvent-additive synergy strategy that employsγ-valerolactone(GVL)in conjunction with reductive acids like oxalic acid(OA),to stabilize α-FAPbI3single crystals(SCs).GVL enhances the stability of the precursors through the formation of FA+-GVL hydrogen bonds and high-valence[PbIx]2-xclusters,resulting in ambient-stable α-phase SCs,yielding a marked improvement in stability compared to SCs prepared with the toxic solventγ-butyrolactone(GBL).Additive modulation demonstrates that H+and reductive groups play a critical role in regulating crystallization,suppressing the δ-phase by promoting FA+dissociation and inhibiting MA+deprotonation.A solvent-involved intermediate, δ-FAPbI3-GVL,has been identified;this intermediate evolves into α-FAPbI3at a low temperature of 60℃,thereby reducing the energy barriers associated with the α to δ phase transition.In contrast,non-reductive acids and reductive ionic liquids do not inhibit δ-phase formation,with the latter even promoting the crystallization of pure δ-FAPbI3.By utilizing low-volatility OA as an additive,optimized FA0.9MA0.1PbI3single crystal thin films exhibit a low defect density of 8.3×1011cm-3.Subsequently,a photodetector was fabricated.Under zero bias voltage and 780 nm illumination,the device exhibited a responsivity of 14.5 mA/W,a detectivity of 3.75×1010 Jones,and a response speed of 149/65μs.Moreover,without any encapsulation,the device’s performance diminished by only 17%after 30 days of storage in ambient conditions,indicating remarkable stability. 展开更多
关键词 FAPbI3 green solvent engineering solvent-involved intermediate additive modulation photodetector
暂未订购 下载PDF
Facet engineering of metal-organic frameworks enables high piezoelectricity and piezocatalysis:A case study of ZIF-8 认领 引用
15
作者 Zhemi Xu Haolin Cui +9 位作者 Shule Zhang Peiyuan Guan Tianhao Ji Jin Yan Qianyu Li Dewei Chu Yunxuan Weng Zhimin Ao Yang Liu Jian Jin 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第4期312-318,共7页
The exposure of specific facets in catalysts plays a pivotal role in surface/interface reactions.This study systematically explores facet engineering as a novel approach to enhancing the piezoelectric and piezo-photoc... The exposure of specific facets in catalysts plays a pivotal role in surface/interface reactions.This study systematically explores facet engineering as a novel approach to enhancing the piezoelectric and piezo-photocatalytic capabilities of metal-organic frameworks(MOFs),with a focus on ZIF-8 as a model compound.By selectively exposing specific facets-(100),(110),and a combination of both in mixed configurations,this research examines how facet orientation affects piezoelectric properties,charge separation efficiency,and catalytic performance.The ZIF-8 samples,identified as ZIF-8-RD,ZIF-8-CUBE,ZIF-8-TRD_1,and ZIF-8-TRD2 demonstrated distinct catalytic activities in photocatalysis,piezocatalysis,and piezo-photocatalysis.Notably,ZIF-8-TRDs,with the mixed-facet exposure,showed superior catalytic performance,achieving up to 94%degradation of tetracycline(TC)in piezo-photocatalysis,a substantial improvement over the single-facet variant.This enhanced performance is attributed to the mixed facets'higher carrier concentration and superior charge separation facilitated by the increased internal piezoelectric potential.Density functional theory(DFT)calculations corroborate the experimental results,revealing that mixed facets contribute to a larger dipole moment,indicating greater structural asymmetry and piezoelectric efficiency.The findings underscore facet engineering as an effective strategy to optimize MOF-based catalysts,opening avenues for high-performance materials tailored for environmental remediation and sustainable energy applications.This work not only pioneers facet engineering in MOF piezophotocatalysts but also opens new avenues for the development and enhancement of high-performance MOF in piezoelectricity. 展开更多
关键词 MOFs Facet engineering Piezoelectric properties Piezo-photocatalysis
暂未订购 下载PDF
Enhancing the Ionic Conduction of Ceria-Based Electrolytes for LT-SOFCs via Entropy Engineering 认领 引用
16
作者 Xiu-Xiu Li En-Yi Hu +4 位作者 Fa-Ze Wang Jun Wang Chen Xia Aleksandar Staykov Peter Lund 《Rare Metals》 SCIE EI CAS CSCD 2026年第1期616-628,共13页
Developing alternative electrolytes with enhanced ionic conductivity is crucial to reducing the operating temperature of solid oxide fuel cells(SOFCs)for broader applications.Entropy engineering offers many opportunit... Developing alternative electrolytes with enhanced ionic conductivity is crucial to reducing the operating temperature of solid oxide fuel cells(SOFCs)for broader applications.Entropy engineering offers many opportunities for material design,presenting a promising avenue to develop new electrolytes.In this work,two new ceria-based electrolytes,the medium-entropy Sm0.25La0.25Pr0.25Ce0.25O2-δ(SLPC25)and low-entropy Sm0.05La0.05Pr0.05Ce0.85O2-δ(SLPC5)are designed for low-temperature SOFCs using the entropy engineering strategy,with pure CeO2as a reference.It is found that higher configurational entropy leads to enriched oxygen vacancies in the two oxides and thus enhances the ionic transport,which is verified through material characterizations,density functional theory calculations,and cell performance tests.The medium-entropy SLPC25exhibits superior cell performance(836 mW cm-2)and improved ionic conductivity(0.09 S cm-1)at 520℃as compared to those of the low-entropy SLPC5 and CeO2.Further investigation confirms the hybrid proton-oxygen ion conduction and good fuel cell stability of the SLPC25 electrolyte.This study indicates that higher entropy enhances the ionic conductivity and cell performance of ceria-based electrolytes.The entropy engineering strategy used here holds significant potential to develop advanced electrolytes for low-temperature SOFCs. 展开更多
关键词 ceria electrolyte electrochemical performance entropy engineering ionic conductivity SOFCs
暂未订购 下载PDF
MXene-Based Materials:Compositional Engineering for High-Performance Microwave Absorption 认领 引用
17
作者 Pan-Pan Zhou Shi-Lin Yuan +6 位作者 Wen-Yu Cao Xiao-Chi Lu Ya-Wei Kuang Xue-Kun Hong Yu-Shen Liu Li-Xi Wang Qi-Tu Zhang 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期183-215,共33页
The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials(MAMs),such as high absorption efficiency,lightweight,and envi... The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials(MAMs),such as high absorption efficiency,lightweight,and environmental stability,making the development of advanced MAMs urgent for both civilian and national defense applications.MXenes,as an emerging two-dimensional material,exhibit great potential as MAMs due to their tunable surface chemistry,excellent conductivity,and diverse composite properties.However,existing reviews of MXene-based MAMs lack a systematic overview of the synergistic mechanisms between MXenes and other novel materials as well as composition and structure synergistic regulation strategies for performance optimization.This work comprehensively reviews the latest research progress on MXene-based MAMs,first elaborating on their various loss mechanisms,including conductive loss,polarization loss,and magnetic loss.Furthermore,various composite strategies(hybridization with carbon-based,magnetic,polymeric,and ceramic materials)and their synergistic effects are explored together with the impact of structural engineering(0D/1D/2D/3D,heterostructures,porous structures)on the tuning of electromagnetic wave absorption performance.Finally,this work discusses the current challenges and future development directions of MXene-based MAMs,aiming to establish composition-structure-function correlations and provide a reference for their future development. 展开更多
关键词 compositional engineering magnetoelectric synergy microwave absorption MXene
暂未订购 下载PDF
Synergistic Ligand Engineering Suppresses Dye Aggregation Quenching and Photobleaching in Lanthanide Upconversion Nanoparticles 认领 引用
18
作者 Shiqi Yu Datao Tu +8 位作者 Fei Zhao Fei Du Yun Xing Qingyan Liu Xiaoying Shang Renfu Li Zhi Xie Qian Liu Xueyuan Chen 《Aggregate》 EI CAS CSCD 2026年第4期220-228,共9页
Near-infrared cyanine dyes are widely employed for sensitizing lanthanide upconversion luminescence(UCL),but generally suffer from aggregation-caused quenching(ACQ)and photobleaching.Herein,we report a ligand engineer... Near-infrared cyanine dyes are widely employed for sensitizing lanthanide upconversion luminescence(UCL),but generally suffer from aggregation-caused quenching(ACQ)and photobleaching.Herein,we report a ligand engineering strategy utilizing pyridine-2-carboxylic acid(2PA)to competitively modify with cyanine dyes(e.g.,IR808)on the lanthanide-doped nanoparticles(e.g.,Cs2NaYbF6:Er,Nd).Specifically,2PA suppresses ACQ of dye via physical isolation,passivates surface defects to reduce lanthanide dopants quenching,and actively quenches singlet oxygen to enhance the photostability of the sensitized system.This synergy ultimately enhances the dye-sensitized lanthanide UCL by over one order of magnitude and shows superior photostability under continuous stimulation.Remarkably,this strategy shows universality across multiple dye-sensitized systems and demonstrates UCL enhancement and photostability improvement at the single-particle level upon high-power excitation.This work overcomes the fundamental bottlenecks in dye-sensitized lanthanide systems,offering a facile strategy for designing high-performance UCL nanoplatforms for versatile applications. 展开更多
关键词 dye sensitization lanthanide ions ligand engineering nanoparticle upconversion luminescence
Laser additive manufacturing of high-resolution microscale shell lattices by toolpath engineering 认领 引用
19
作者 Junhao Ding Shuo Qu +8 位作者 Shengbiao Zhang Zongxin Hu Zhenyong Feng Tianyu Gao Ming Wang Fu Lei Zhang Chinnapat Panwisawas Wen Chen Xu Song 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2026年第1期485-500,共16页
Laser additively manufactured microscale metallic lattices show great potential for high-performance applications,yet trade-offs among geometric precision,structural integrity,and computational efficiency still persis... Laser additively manufactured microscale metallic lattices show great potential for high-performance applications,yet trade-offs among geometric precision,structural integrity,and computational efficiency still persist.Here,we introduce a stereolithography file format-free(STL-free)hybrid toolpath generation method for laser-based powder bed fusion(PBF-LB)that synergizes implicit geometric modeling with optimized laser scanning strategy,overcoming these limitations.By circumventing traditional mesh-based workflows,our method directly translates implicit lattice geometries into laser toolpaths while precisely regulating energy deposition trajectories.This mesh-free process enables the fabrication of complex shell lattices with ultra-thin walls and enhanced surface quality.In addition to reducing memory usage and processing time by up to 90%,the method yields a synergistic enhancement in mechanical performance,notably improving both strength and toughness.By bridging computational design and fabrication,this framework enables the scalable production of high-performance microscale lattices and unlocks their potential for industrial applications. 展开更多
关键词 toolpath engineering STL-free hybrid toolpath high-resolution printing laser-based powder bed fusion microscale lattices
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 250 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈